Installed ONLYOFFICE 9.0.4 from the downloaded .rpm to my Fedora 42 KDE. When I start ONLYOFFICE it closes after 1 second.
Hello @Spidrena, 
Thank you for reporting the issue with ONLYOFFICE 9.0.4 closing after 1 second on Fedora 42 KDE.
Could you please try launching the application from the terminal to see if any error messages appear? This could help us identify the cause.
Additionally, have you experienced similar issues with version 9.0.4 or earlier versions of ONLYOFFICE on Fedora 42 KDE?
If possible, sharing a short video demonstrating the problem would be very helpful for our investigation. 
Hello Nicolas,
Started in terminal I get the following:
bash-5.2$ desktopeditors
(DesktopEditors:9002): Gtk-WARNING **: 10:06:37.536: gtk_disable_setlocale() must be called before gtk_init()
QXcbConnection: XCB error: 8 (BadMatch), sequence: 757, resource id: 23068735, major code: 130 (Unknown), minor code: 3
QXcbConnection: XCB error: 8 (BadMatch), sequence: 775, resource id: 23068735, major code: 130 (Unknown), minor code: 3
Afgebroken (geheugendump gemaakt)
bash-5.2$
I don’t understand anything of it, only there is something about locales.
Hope you can point me to a solution here.
Thank you for your willing to help.
I tried the appimage with same result.
I also installed ONLYOFFICE in a virtual machine running Arch and it works well, although I get the same error about locales when started from terminal.
Hope this info helps.
Please provide the output of the following commands: neofetch and fastfetch commands
+
echo $XDG_SESSION_TYPE
XDG_session = wayland
Output of fastfetch:
OS: Fedora Linux 42 (KDE Plasma Desktop 4
Host: B650 EAGLE AX (-CF)
Kernel: Linux 6.15.10-200.fc42.x86_64
Uptime: 3 hours, 50 mins
Packages: 2546 (rpm)
Shell: bash 5.2.37
Display (MSI MP2412): 1920x1080 @ 100 Hz]
DE: KDE Plasma 6.4.4
WM: KWin (Wayland)
WM Theme: PurPurDayBlur-Aurorae-6
Theme: Breeze (PurPurDayColor) [Qt], Bre]
Icons: Slot-Light-Icons [Qt], Slot-Light]
Font: Noto Sans (10pt) [Qt], Noto Sans (]
Cursor: Sweet (24px)
Terminal: konsole 25.8.0
CPU: AMD Ryzen 5 8600G (12) @ 5.08 GHz
GPU: AMD Phoenix1 [Integrated]
Memory: 4.77 GiB / 30.49 GiB (16%)
Swap: 0 B / 8.00 GiB (0%)
Disk (/): 341.81 GiB / 952.28 GiB (36%) s
Disk (/run/media/rene/backup): 515.15 Gi4
Local IP (enp5s0): 192.168.0.104/24
Locale: nl_BE.UTF-8
You are using Wayland (It might be causing some issues.)
Does the problem persist if you switch to X11?
I cannot login to X11 sesion, there is only wayland in Fedora 43
Hey @Spidrena,
Thanks for the update and all the details — we really appreciate your patience!
We’ll check this on 9.3.1 (Wayland on Fedora 43) to see if the crash still occurs. I’ll get back to you here as soon as we confirm whether it’s reproducible or fixed.
TY!